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92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
import React, { useRef, useEffect } from 'react';
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import ChartJS from 'chart.js';
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export default function PageviewsChart({ data }) {
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const canvas = useRef();
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const chart = useRef();
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function draw() {
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if (!canvas.current) return;
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if (!chart.current) {
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chart.current = new ChartJS(canvas.current, {
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type: 'bar',
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data: {
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datasets: [
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{
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label: 'unique visitors',
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data: data.uniques,
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lineTension: 0,
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backgroundColor: 'rgb(146, 86, 217, 0.2)',
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borderColor: 'rgb(122, 66, 191, 0.3)',
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borderWidth: 1,
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},
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{
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label: 'page views',
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data: data.pageviews,
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lineTension: 0,
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backgroundColor: 'rgb(38, 128, 235, 0.2)',
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borderColor: 'rgb(13, 102, 208, 0.3)',
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borderWidth: 1,
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},
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],
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},
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options: {
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animation: {
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duration: 300,
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},
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tooltips: {
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intersect: false,
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},
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hover: {
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animationDuration: 0,
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},
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scales: {
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xAxes: [
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{
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type: 'time',
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distribution: 'series',
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offset: true,
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time: {
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displayFormats: {
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day: 'ddd M/DD',
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},
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tooltipFormat: 'ddd M/DD hA',
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},
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gridLines: {
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display: false,
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},
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stacked: true,
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},
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],
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yAxes: [
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{
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ticks: {
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beginAtZero: true,
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},
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stacked: true,
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},
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],
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},
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},
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});
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} else {
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chart.current.data.datasets[0].data = data.uniques;
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chart.current.data.datasets[1].data = data.pageviews;
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chart.current.update();
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}
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}
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useEffect(() => {
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if (data) {
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draw();
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}
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}, [data]);
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return (
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<div>
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<canvas ref={canvas} width={960} height={400} />
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</div>
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);
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}
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